Saturn’s moon Mimas earned the nickname “Death Star Moon” because of one enormous crater called Herschel. With steep walls ...

While the crater-pitted moon may appear geologically dead, researchers have discovered more could be going on under its icy shell.

Saturn's moons Mimas (right) and Janus appear to hang silently in space as they orbit their ringed parent planet in this stunning photo from NASA's Cassini spacecraft at Saturn. The outer edge of ...

A new study reveals how shifting ice shells on icy moons can cause dramatic pressure changes, sometimes enough to boil their hidden oceans. The outer planets of our Solar System are accompanied by ...

A new study published Nov. 24 in Nature Astronomy sheds light on what could be going on beneath the surface of these worlds ...

The outer planets of the solar system are swarmed by ice-wrapped moons. Some of these, such as Saturn's moon Enceladus, are ...